. ♪ [ continues ] [ gasping ] >>> tonight a 360 exclusive from syria. an extraordinary display of bravery under a sniper's alley. a teenage boy, who risked his life, says he's no hero, that he did what countless others do every day. we're going to show you that in a moment. >>> first, new signs that defeat could be near for al assad's regime. he is losing control of his country and admitted the opposition could win. nato's leader said the regime is approaching collapse. their comments came as opposition groups seized a military base near damascus. syrian state television said at least two dozen civilians were killed in two car bombings outside of damascus. seven children were said to be among those killed in this blast. in a nearby town, eight people, mostly women and children, were reported killed in this bombing according to state television. assad shows no outward signs of backing down and in hot spots civilians are still dying in the crossfire. now that act of incredible courage that was daut kaut on tape. here is arwa damon's exclusive report. >> r